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1999 Frontier 2.4l 2wd

534 Views 8 Replies 3 Participants Last post by  GotToGo, 
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Need a little help, #4 misfire code i have changed plugs ,wires, distributer cap and rotor still no change replaced air filter checked for vacuum leaks tried crimping vacuum line to egr valve and checked ohms on injectors which are 10.3 to 10.5 on all 4 truck misses at low rpm's while through town as well as under load at stoplights but seems to accelerate great once i get above 2000 rpm's any thoughts? 212000 miles

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shift_RUSH said:
Original distributor?
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I think, im not original owner though so not sure

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shift_RUSH said:
If you do replace it, go with Nissan OEM part.
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I heard they could be the culprit, anyway for me to test or just replace it?

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shift_RUSH said:
Perhaps it can be bench tested? Try an autoparts store for more info.

Battery terminals clean & tight?
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Yes 12.4 volts not running 14plus running

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lugnut71 said:
Yes 12.4 volts not running 14plus running

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I can see where the timing was adjusted by old bolt mark on ear of distributer adjust slot

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